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70216748 = 22797103251
BaseRepresentation
bin1000010111101…
…10110000101100
311220010101021022
410023312300230
5120433413443
610544553312
71511555360
oct413666054
9156111238
1070216748
11366a9978
121b622838
1311716394
14947b2a0
15626ee68
hex42f6c2c

70216748 has 48 divisors (see below), whose sum is σ = 143829504. Its totient is φ = 29376000.

The previous prime is 70216703. The next prime is 70216753. The reversal of 70216748 is 84761207.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279623 + ... + 279873.

It is an arithmetic number, because the mean of its divisors is an integer number (2996448).

Almost surely, 270216748 is an apocalyptic number.

It is an amenable number.

70216748 is an abundant number, since it is smaller than the sum of its proper divisors (73612756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70216748 is a wasteful number, since it uses less digits than its factorization.

70216748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 70216748 is about 8379.5434243161. The cubic root of 70216748 is about 412.5534632878.

The spelling of 70216748 in words is "seventy million, two hundred sixteen thousand, seven hundred forty-eight".

Divisors: 1 2 4 7 14 28 97 103 194 206 251 388 412 502 679 721 1004 1358 1442 1757 2716 2884 3514 7028 9991 19982 24347 25853 39964 48694 51706 69937 97388 103412 139874 170429 180971 279748 340858 361942 681716 723884 2507741 5015482 10030964 17554187 35108374 70216748